CN106908254A - Tire vibration experimental rig - Google Patents
Tire vibration experimental rig Download PDFInfo
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- CN106908254A CN106908254A CN201510976947.0A CN201510976947A CN106908254A CN 106908254 A CN106908254 A CN 106908254A CN 201510976947 A CN201510976947 A CN 201510976947A CN 106908254 A CN106908254 A CN 106908254A
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- rotary drum
- tire
- vibrator
- support member
- exciting force
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/02—Tyres
- G01M17/025—Tyres using infrasonic, sonic or ultrasonic vibrations
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Abstract
A kind of tire vibration experimental rig, including：The rotary drum that can be rotated, the rotary drum can drive the tire to be travelled on the outer peripheral face of rotary drum；The rotary drum can receive the exciting force of the exciting force from first direction, the exciting force of second direction and third direction；The first direction is the axial direction of the rotary drum, and the second direction is vertical direction；The first direction, second direction, third direction are mutually perpendicular to.Tire can be simulated by adjusting the direction of the exciting force suffered by rotary drum using tire vibration experimental rig of the invention, and the vibration characteristics of tire is tested under the operating mode such as brake hard, acceleration, lateral sliding on the road surface.
Description
Technical field
The present invention relates to tire vibration experimental technique field, and in particular to a kind of tire vibration experimental rig.
Background technology
The research of tire vibration characteristics when being travelled to vehicle, be conducive to analyzing and explain vehicle driving comfort and
Tyre noise Producing reason, and enter line parameter identification and model checking to tire dynamics model.
Traditional tire vibration characteristic test testing stand has following feature：
(1) tire is fixedly mounted on testing stand, and typically tire is fixedly mounted on testing stand by fixture,
Plumb load is realized by actuator, in tire inspection process, tire vertical loading is constant；
(2) rotary drum center is fixed, and drives rotary drum to rotate by eddy current dynamometer, so that tire is pressed
Rotated according to certain speed, carry out the response characteristic measurement under tyre rotation operating mode.
Its exist deficiency be：
Rotary drum center is fixed, and vertical load is unable to real-time regulation, meanwhile, tire is only subject to vertical load,
Load without other directions, therefore tire brake hard, acceleration, lateral sliding on road surface can not be simulated
Etc. the vibration characteristics test of tire under operating mode, being applied to need to be by other experiment when tire model parameter is recognized
Facility.
The content of the invention
The problem that the present invention is solved is that tire is only subject to vertical load, and vertical load is constant, without other
The load in direction, it is impossible to simulate tire operating mode lower whorl such as brake hard, acceleration, lateral sliding on road surface
The vibration characteristics test of tire.
To solve the above problems, the present invention provides a kind of tire vibration experimental rig, including：
The rotary drum that can be rotated, the rotary drum can drive the tire to be travelled on the outer peripheral face of rotary drum；
The rotary drum can receive the exciting force from first direction, the exciting force of second direction and third party
To exciting force；
The first direction is the axial direction of the rotary drum, and the second direction is vertical direction；
The first direction, second direction, third direction are mutually perpendicular to.
Optionally, also including vibrator, the vibrator can apply swashing for first direction to the rotary drum
Encourage the exciting force of power, the exciting force of second direction and third direction；The vibrator includes：
The first vibrator of the exciting force of first direction can be applied to the rotary drum；
The second vibrator of the exciting force of second direction can be applied to the rotary drum；
The 3rd vibrator of the exciting force of third direction can be applied to the rotary drum.
Optionally, also include：Drive mechanism, for driving the rotary drum to rotate.
Optionally, also including first support and second support, rotating shaft axial direction one end of the rotary drum with it is described
First support is connected, and the axial other end is connected with the second support.
Optionally, first vibrator, the second vibrator, the 3rd vibrator respectively with described first
Frame, second support offset.
Optionally, also include：First platform, the rotary drum, drive mechanism, driver are located at described
On one platform.
Optionally, first platform includes：
Base plate；
The first support member, the second support member on the base plate, the 3rd support member；
On first support member, second vibrator is located at the base plate to first vibrator
On, on second support member, the drive mechanism is located at described 3rd to the 3rd vibrator
In support member.
Optionally, also include：
Second platform, vertically, second platform and first platform have setpoint distance；
Second platform is provided with the 4th support member, and the tire is provided with the 4th support member；
Second platform is provided with perforate, and the perforate exposes the rotary drum；
In the tapping, the rotary drum and the tire interface simultaneously make the tire in the outer of the rotary drum
Travelled on side face.
Optionally, the 4th support member is provided with groove, and sliding block, the sliding block are provided with the groove
Can vertically be slided in the groove；
The second axle is installed with the sliding block, the tire is installed on second axle.
Optionally, wheel rim is arranged on second axle, the tire is installed, in the wheel on the wheel rim
The inner peripheral surface of rim is provided with determination of six components of foree instrument, for detecting during the tire running described first
Power and torque suffered by direction, second direction and third direction.
Optionally, the first support is provided with the first acceleration transducer, for detecting described first
The acceleration that frame is produced when power is activated；
The second support is provided with the second acceleration transducer, for detecting that the second support is being subject to
The acceleration produced during exciting force；
Second axle is provided with the 3rd acceleration transducer, for detecting that the tire is being activated power
When produced acceleration.
Optionally, the vibrator has exciting rod, and excitation force snesor is provided with the exciting rod,
For detecting the exciting force that the vibrator is applied.
Optionally, the rotating shaft of the rotary drum is provided with speed probe and torque sensor, for detecting
State rotating speed and the torque of drive mechanism output.
Optionally, the drive mechanism is eddy current dynamometer or motor.
Optionally, the external diameter of the rotary drum is 5-10 times of the tire outside diameter.
Optionally, also including the excitation of the exciting force or the third direction of the second direction can be applied
The toroidal magnetic field mechanism of power, the toroidal magnetic field mechanism includes axial one end of the rotating shaft located at the rotary drum
First annular field mechanisms, and located at the rotary drum rotating shaft the axial other end the second annular magnetic
Field mechanism；
The toroidal magnetic field mechanism is by producing the radial electromagnetic force of the rotating shaft around the rotary drum to described turn
Drum applies the exciting force of the second direction or the exciting force of the third direction；
Also include：Vibrator, the vibrator can apply the excitation of the first direction to the rotary drum
Power.
Optionally, the toroidal magnetic field mechanism includes：
The inner ring being mutually arranged and outer ring, have gap between the inner ring and the outer ring；
The inner ring is fixedly arranged in the rotating shaft of the rotary drum, circumferentially, is interval with the inner ring multigroup
First coil；
The outer ring is permanent magnet, or, the outer ring is provided with multigroup second coil, the vibrator
Offseted with the outer ring；
After the first coil or second coil electricity, produced between the inner ring and the outer ring
Around the radial electromagnetic force of the rotating shaft of the rotary drum.
Optionally, also including multiple electromagnetic controllers, each electromagnetic controller with first described in every group
Coil is connected；Each electromagnetic controller is controlled by changing the size of current of the input first coil
Produced radial electromagnetic force size.
Optionally, also include：Drive mechanism, for driving the rotary drum to rotate.
Optionally, also include：First platform, the rotary drum, drive mechanism, driver are located at described
On one platform.
Optionally, first platform includes：
Base plate；
The first support member, the second support member, the 3rd support member and the 4th support member on the base plate；
The vibrator is located on first support member, the outer ring at the axial two ends of the rotating shaft of the rotary drum
It is respectively arranged on second support member and the 3rd support member, the drive mechanism is located at the described 4th
On support member.
Optionally, also include：
Second platform, vertically, second platform and first platform have setpoint distance；
Second platform is provided with the 5th support member, and the tire is provided with the 5th support member；
Second platform is provided with perforate, and the perforate exposes the rotary drum；
In the tapping, the rotary drum and the tire interface simultaneously make the tire in the outer of the rotary drum
Travelled on side face.
Optionally, the 5th support member is provided with groove, and sliding block, the sliding block are provided with the groove
Can vertically be slided in the groove；
The second axle is installed with the sliding block, the tire is installed on second axle.
Optionally, wheel rim is arranged on second axle, the tire is installed, in the wheel on the wheel rim
The inner peripheral surface of rim is provided with determination of six components of foree instrument, for detecting during the tire running described first
Power and torque suffered by direction, second direction and third direction.
Optionally, axial one end of the rotating shaft of the rotary drum is provided with the first acceleration transducer, for detecting
The acceleration that axial one end of the rotating shaft of the rotary drum produces when power is activated；
The axial other end of the rotating shaft of the rotary drum is provided with the second acceleration transducer, for detecting described turning
The acceleration that the axial other end of bulging rotating shaft is produced when power is activated；
Second axle is provided with the 3rd acceleration transducer, for detecting that the tire is being activated power
When produced acceleration.
Optionally, the vibrator has exciting rod, and excitation force snesor is provided with the exciting rod,
For detecting the exciting force that the vibrator is applied.
Optionally, the rotating shaft of the rotary drum is provided with speed probe and torque sensor, for detecting
State rotating speed and the torque of drive mechanism output.
Compared with prior art, technical scheme has advantages below：
Rotary drum in tire vibration experimental rig of the invention has outer peripheral face, and the rotary drum can drive institute
Tire is stated to be travelled on the outer peripheral face；After tire is installed on experimental rig, tire is outer with rotary drum
Circumferential contact, drum rotating drives tire to be travelled in the outer peripheral face of rotary drum；During drum rotating,
Rotary drum in this experimental rig is subject to exciting force, the exciting force and third direction of second direction of first direction
Exciting force, the size of the exciting force for being applied can adjust；That is, rotary drum can be subject to wherein any one
The exciting force in individual direction, or, the exciting force in any two of which direction, or, three directions are swashed
Encourage power；Wherein, first direction is the axial direction of rotary drum, and second direction is vertical direction (vertical), the 3rd
Individual direction is horizontal direction；Compared in the prior art, tire only receives vertical load；In the present embodiment,
Rotary drum can at most receive three exciting forces in direction, so that tire can also be produced by the exciting force in three directions
Raw load and torque；Tire can be simulated by adjusting the direction of the exciting force suffered by rotary drum on road surface
The vibration characteristics test of tire under the operating modes such as brake hard, acceleration, lateral sliding.
Brief description of the drawings
Fig. 1 is the stereogram of the tire vibration experimental rig of the embodiment of the present invention one；
Fig. 2 is the front view of the tire vibration experimental rig of the embodiment of the present invention one；
Fig. 3 is the right view of the tire vibration experimental rig of the embodiment of the present invention one；
Fig. 4 is the enlarged drawing of part A in Fig. 1；
Fig. 5 is the enlarged drawing of part B in Fig. 1；
Fig. 6 is the enlarged drawing of tire and the 4th support member in the tire vibration experimental rig of the embodiment of the present invention one；
Fig. 7 is the stereogram of the tire vibration experimental rig of the embodiment of the present invention two；
Fig. 8 is the front view of the tire vibration experimental rig of the embodiment of the present invention two；
Fig. 9 is the right view of the tire vibration experimental rig of the embodiment of the present invention two；
Figure 10 is the profile of annular field mechanisms in the tire vibration experimental rig of the embodiment of the present invention two, and
Radial electromagnetic force between inner ring and outer ring in the mechanism of toroidal magnetic field is shown；
Figure 11 is the enlarged drawing of C portion in Fig. 7；
Figure 12 is the amplification of tire and the 5th support member in the tire vibration experimental rig of the embodiment of the present invention two
Figure.
Specific embodiment
In the prior art, tire is only subject to vertical load, and vertical load is constant, the load without other directions
Lotus, it is impossible to simulate the vibration of tire tire under the operating mode such as brake hard, acceleration, lateral sliding on the road surface
Characteristic test；And tire vibration experimental rig of the invention can make tire by three exciting force institutes in direction
The load and torque of generation；Tire can be simulated by the direction of the exciting force suffered by regulation to be tightened on road surface
The vibration characteristics test of tire under the operating modes such as anxious braking, acceleration, lateral sliding.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings
Specific embodiment of the invention is described in detail.
Embodiment one
With reference to Fig. 1, the tire vibration experimental rig of the embodiment of the present invention includes：The rotary drum 11 that can be rotated,
Rotary drum 11 itself can rotate, or drive rotary drum 11 to rotate by drive mechanism, this reality
Apply without limitation in example, as long as rotary drum 11 can rotate；Rotary drum 11 has for the row of tire 22
The outer peripheral face sailed, rotary drum 11 can tire on the drive wheels 22 travelled on the outer peripheral face of rotary drum 11, in order that
The outer peripheral face of rotary drum 11 should be far longer than the outer of tire 22 closer to real road surface, the external diameter of rotary drum 11
Footpath, the external diameter of general rotary drum 11 is 5-10 times of the external diameter of tire 22, in the present embodiment, outside rotary drum 11
Footpath is 3m-5m, including 3m and 5m, and the external diameter of tire 22 is 0.6m；Additionally, in the outer of rotary drum 11
Side face is also distributed with screwed hole, for installing road surface block, can simulate tire 22 up on different road surfaces
Sail.
Rotary drum 11 can receive the exciting force and third direction of the exciting force from first direction, second direction
Exciting force；The tire vibration experimental rig of the present embodiment also includes vibrator, and vibrator can be to rotary drum
The exciting force of 11 exciting forces, the exciting force of second direction and third direction for applying first direction；First party
To, second direction, third direction be mutually perpendicular to, wherein, first direction for rotary drum 11 axial direction (Fig. 1
In Y-direction), second direction be vertical direction (Z-direction in Fig. 1)；Third direction is longitudinal direction (figure
X-direction in 1)；When rotary drum 11 is in the exciting force by first direction, rotary drum 11 can be vertically
Sliding, so as to drive tire 22 to slide vertically；When rotary drum 11 is in the exciting force by second direction,
Rotary drum 11 can be moved up and down vertically, so as to drive tire 22 vertically to move up and down；
When rotary drum 11 is subject to the exciting force of third direction, rotary drum 11 can be movable along longitudinal direction, so that band
Driving wheel tire 22 slides along vertical misalignment, lateral deviation；When the exciting force size of third direction is identical, rotary drum 11
Drive tire vertical misalignment；When the exciting force size of third direction is differed, rotary drum 11 drives tyre side
Sliding partially.In the present embodiment, the maximum excitation power that vibrator applies can reach more than 4000N, exciting
The stroke of the exciting rod of device is up to 50mm.
After tire is installed on experimental rig, tire 22 is contacted with the outer peripheral face of rotary drum 11, rotary drum 11
Rotation, drives tire 22 to be travelled in the outer peripheral face of rotary drum 11；During rotary drum 11 rotates, this examination
Vibrator in experiment device applies the exciting force of first direction, the exciting force of second direction and the to rotary drum 11
The exciting force in three directions, the size of the exciting force for being applied can be adjusted；That is, rotary drum 11 can be subject to it
In any one direction exciting force, or, the exciting force in any two of which direction, or, three
The exciting force in direction；Compared in the prior art, 22, tire receives vertical load, in the present embodiment, turns
Drum 11 can at most receive the load and torque produced by three exciting forces in direction, so that tire 22 can also
By load and moment loading produced by three exciting forces in direction；Can be by the exciting force suffered by regulation
The tire 22 under the operating mode such as brake hard, acceleration, lateral sliding on the road surface of tire 22 is simulated in direction
Vibration characteristics is tested.
Referring to figs. 2 and 3 vibrator includes in the present embodiment：First direction can be applied to rotary drum 11
Exciting force the first vibrator 18, the first vibrator 18 is one；Second can be applied to rotary drum 11
Second vibrator 19 of the exciting force in direction, the second vibrator 19 is two, respectively positioned at rotary drum 11
Both sides；And can be to the 3rd vibrator 14a of the exciting force of the applying third direction of rotary drum 11, the 3rd swashs
It is also two to shake device 14a, also respectively positioned at the both sides of rotary drum 11.
With continued reference to Fig. 2, this experimental rig also includes first support 15 and second support 16, rotary drum 11
Rotating shaft axial direction one end be connected with first support 15, the axial other end is connected with second support 16, this reality
Apply in example, first support 15 and second support 16 are circular support, and the shape for support is not limited,
As long as the rotating shaft of rotary drum 11 can be supported.
With continued reference to Fig. 2, experimental rig also includes drive mechanism 17 in the present embodiment, by drive mechanism
17 driving rotary drums 11 rotate, and drive mechanism 17 can be eddy current dynamometer or motor, be driven in the present embodiment
Motivation structure is eddy current dynamometer, drives rotary drum 11 to rotate by eddy current dynamometer.
With reference to Fig. 4 and Fig. 5, the first vibrator 18, the second vibrator 19, the 3rd vibrator 14a, drive
Motivation structure 17 offsets with first support 15, second support 16 respectively；That is, with reference to Fig. 2, this implementation
In example, first support 15 offsets with drive mechanism 17 in a first direction, specifically, the rotating shaft of rotary drum 11
First support 15 is stretched out, and is connected with the output shaft of eddy current dynamometer by flexible clutch, due to using
Flexible clutch, then, first support 15 can be moved in the presence of external force；First support 15 exists
Second direction offsets with the second vibrator 19, specifically, the outer peripheral face of first support 15 to be provided with first recessed
Groove (not shown), the exciting rod of the second vibrator 19 is connected by ball pivot with the first groove；First
Frame 15 offsets in third direction with the 3rd vibrator 14a, specifically, the outer peripheral face of first support 15 sets
The exciting rod for having the second groove (not shown), the 3rd vibrator 14a is connected by ball pivot with the second groove.
The both sides of rotary drum 11 are symmetrically set in due to first support 15 and second support 16, in second support
16 first direction offsets with the first vibrator 18, specifically, second support 16 is axially arranged with the 3rd
Groove (not shown), the exciting rod of the first vibrator 18 is connected by ball pivot with the 3rd groove；Second
Support 16 offsets in second direction with the second vibrator 19, specifically, the outer peripheral face of second support 16 sets
The exciting rod for having the 4th groove (not shown), the second vibrator 19 is connected by ball pivot with the 4th groove；
Second support 16 offsets in third direction with the 3rd vibrator 14a, specifically, second support 16 is outer
Side face is provided with the 5th groove (not shown), and the exciting rod of the 3rd vibrator 14a is recessed with the 5th by ball pivot
Groove is connected.
Can certainly be interpreted as, first support 15 is by drive mechanism 17, the second vibrator 19 and the 3rd
Vibrator 14a is supported；Second support is by the first vibrator 18, the second vibrator 19 and the 3rd vibrator
14a is supported.
Embodiment of the present invention tire vibration experimental rig also includes：First platform, rotary drum 11, drive mechanism
17th, driver is located on the first platform, and particularly, with reference to Fig. 1, the first platform includes：Base plate 10,
Vertically, there is gap between base plate 10 and rotary drum 11, process and bottom that rotary drum 11 rotates is prevented
Plate 10 rubs；It is provided with base plate 10 located at the first support member 13 (referring to Fig. 2), the second support member 14
(referring to Fig. 1), the 3rd support member 12 (referring to Fig. 2)；It can be seen that, the first support member 13 and the 3rd is supported
Part 12 is one, and the second support member 14 is two, the first support member 13 and the 3rd support member 12
In the both sides of rotary drum 11, and be coaxially disposed, two the second support members 14 along the axial arranged of rotary drum 11,
Can with it is coaxially arranged can not also be coaxially arranged；In the present embodiment, the first support member 13, the second support member
14th, the 3rd support member 12 is plate-like, in other embodiments, the first support member 13, the second support member
14th, the 3rd support member 12 can also be in the form of a column or other shapes, as long as can play a supporting role.
With reference to Fig. 4, the first vibrator 18 is located on the first support member 13 in the present embodiment, the first vibrator
18 perpendicular to the first support member 13；With reference to Fig. 2, the second vibrator 19 on base plate 10, two the
Two vibrators 19 are coaxially arranged, and perpendicular to base plate 10；With reference to Fig. 3, the 3rd vibrator 14a is located at the
On two support members 14, and perpendicular to the second support member 14；With reference to Fig. 2, drive mechanism 17 is located at the 3rd
It is that a groove is opened up on the 3rd support member 12 in the present embodiment on support member 12, drive mechanism 17
It is arranged in the groove.
With reference to Fig. 2, the experimental rig of the present embodiment also includes：Second platform 20, the second platform 20 is in plate
Shape, vertically, the second platform 20 and the first platform have setpoint distance, the i.e. He of the second platform 20
Base plate 10 has setpoint distance；The 4th support member 21 is provided with the second platform 20, in the present embodiment,
4th support member 21 is also plate-like, but is not limited to tabular, as long as can play a supporting role, any shape
；4th support member 21 is provided with tire 22 perpendicular to the second platform 20 on the 4th support member 21；
Perforate is provided with the second platform 20, perforate exposes 11 rotary drums；In tapping, rotary drum 11 and tire 22
Contact, the rotation of rotary drum 11 can be such that tire 22 is travelled on the outer peripheral face of rotary drum 11.
With reference to Fig. 6, vertically, the 4th support member 21 is provided with groove, and groove is recessed towards tire
Sliding block 25 is provided with groove, sliding block 25 can vertically be slided in groove；25 are installed with sliding block
Perpendicular to the second axle 23 of sliding block 25, tire 22 is installed on the second axle 23；In the present embodiment,
The top of four support members 21 is provided with the adjusting knob 24 slided for adjusting slider 25, adjusts adjusting knob
24 can be such that sliding block 25 vertically slides, such that it is able to adjust the tire on the second axle 23
Size, it is possible to achieve the vibration test of various sizes of tire.In the present embodiment, it is possible to use leading screw comes
Control slide block 25 is slided in groove.
The tire vibration experimental rig of the embodiment of the present invention is the vibration of tire in order to test under different operating modes
Characteristic, accordingly, it would be desirable to measure the test data under different operating modes；Data for needed for collection experiment, this
Inventive embodiments are arranged wheel rim (not shown) on the second axle 23, and tire 22, wheel rim are installed on wheel rim
Be determination of six components of foree instrument, for detect tire 22 travel during in a first direction, second direction and the 3rd
Power and torque suffered by direction.
Meanwhile, for test tire 22 is, in which operating mode downward driving, the to be provided with first support 15
One acceleration transducer (not shown), for detecting what first support 15 was produced when power is activated
Acceleration；The second acceleration transducer (not shown) is provided with second support 16, for detecting the
The acceleration that two supports 16 are produced when power is activated；The 3rd acceleration biography is provided with the second axle 23
Sensor (not shown), the acceleration produced when power is activated for detecting tire 22；Exciting
Utensil has exciting rod, and excitation force snesor is provided with the exciting rod of each vibrator, each for detecting
The exciting force that vibrator is applied；The rotating shaft of rotary drum 11 is provided with speed probe and torque sensor, uses
Rotating speed and torque in the detection output of drive mechanism 17.
Determination of six components of foree instrument, the first acceleration transducer, the second acceleration transducer in the present embodiment,
3rd acceleration transducer and excitation force snesor, speed probe and torque sensor be each configured to and
Data acquisition unit is connected, and connected mode can be communication connection, or electrical connection, data acquisition
Unit gathers determination of six components of foree instrument, the first acceleration transducer, the second acceleration transducer, the 3rd respectively
The signal that acceleration transducer and excitation force snesor send, the corresponding letter that data acquisition unit will be gathered
Number data processing unit is sent to, experimental data is processed by data processing unit；Under drawing different operating modes
The vibration characteristics of tire.Can be by the vibration characteristics data and tire of tire under the different operating modes measured by experiment
FTire, SWIFT simulation model are contrasted, and recognize tire model parameter, and verify that tire simulation model vibrates
Characteristic.
The vibration of tire under following operating mode can be simulated using the tire vibration experimental rig of the embodiment of the present invention
Characteristic：
1. the first vibrator 18 applies the exciting force of first direction to second support 16, and rotary drum 11 can side
To sliding, then produce lateral sliding between tire 22 and rotary drum 11, the lateral sliding work of tire 22 is simulated
Condition；
2. two the second vibrators 19 apply different excitations to first support 15 and second support 16 respectively
During power, there is the deflection around rotary drum, i.e. tire 22 and have certain outer with respect to the outer peripheral face of rotary drum 11 in rotary drum 11
Inclination angle, rotary drum-dynamic property of tyre during simulation 22 flare of tire；
3. in rotary drum 11 drives the rotation process of tire 22, rotary drum 11 is accelerated by drive mechanism 17
Drive, while synchronous the second vibrator 19 for reducing the both sides of rotary drum 11 is respectively to first support 15 and second
The exciting force that support 16 applies, the dynamic that can be simulated when front-wheel axle load reduces when forerunner's vehicle suddenly accelerates is special
Property；
4. in rotary drum 11 drives the rotation process of tire 22, rotary drum 11 is accelerated by drive mechanism 17
Drive, while the second vibrator 19 of synchronous increase rotary drum 11 both sides is respectively to first support 15 and second
The exciting force that support 16 applies, the dynamic that can be simulated when trailing wheel axle load increases when rear-guard vehicle suddenly accelerates is special
Property；
5. in rotary drum 11 drives the rotation process of tire 22, rotary drum 11 is slowed down by drive mechanism 17
Drive, while synchronous vertical second vibrator 19 for reducing the both sides of rotary drum 11 is respectively to the He of first support 15
The exciting force that second support 16 applies, dynamic when trailing wheel axle load reduces when can simulate vehicle brake hard
Characteristic；
6. in rotary drum 11 drives the rotation process of tire 22, rotary drum 11 is slowed down by drive mechanism 17
Drive, while vertical second vibrator 19 of synchronous increase rotary drum 11 both sides is respectively to the He of first support 15
The exciting force that second support 16 applies, dynamic when front-wheel axle load increases when can simulate vehicle brake hard
Characteristic；
7. two the 3rd vibrator 14a apply identical excitation to first support 15 and second support 16 respectively
During power, there is vertical misalignment in rotary drum 11, that is, simulate tire 22 synchronous in rotation process with respect to rotary drum 11
Generation straight skidding.
8. two the 3rd vibrator 14a apply different exciting forces to first support 15 and second support 16 respectively
When, there is the deflection around third direction in rotary drum 11, that is, simulate tire 22 with respect to rotary drum 11 in rotation process
Middle synchronous generation lateral deviation sliding.It should be noted that, the first vibrator 18, the second vibrator 19 and the 3rd swash
While the device 14a that shakes applies exciting force to first support 15 and second support 16 respectively, determination of six components of foree
Instrument, the first acceleration transducer, the second acceleration transducer, the 3rd acceleration transducer and exciting force are passed
Sensor, speed probe and torque sensor can gather corresponding data-signal, and are sent to data and adopt
Collection unit.Certainly, tire under above-mentioned operating mode can be not only simulated using embodiment of the present invention experimental rig
Vibration test characteristic, can according to actual tests needs, adjust the first vibrator 18, the second vibrator 19
And the 3rd vibrator 14a apply exciting force to first support 15 and second support 16.
Embodiment two
With reference to Fig. 7 and Fig. 8, rotary drum in the rotary drum 11 of the present embodiment and the structure of tire 22 and embodiment one
Structure with tire is identical, in the definition of first direction, second direction and third direction and embodiment one
The definition of one direction, second direction and third direction is identical；Difference is：The present embodiment also includes
The toroidal magnetic field mechanism of the exciting force of second direction or the exciting force of third direction, toroidal magnetic field can be applied
Mechanism includes the first annular field mechanisms 30 of axial one end of the rotating shaft located at rotary drum 11, located at rotary drum
Second toroidal magnetic field mechanism 31 of the axial other end of 11 rotating shaft, applies second direction in embodiment one
The device of exciting force is the second vibrator, and the device for applying the exciting force of third direction is the 3rd vibrator.
In the present embodiment, toroidal magnetic field mechanism by produce around rotary drum 11 rotating shaft radial electromagnetic force to
Rotary drum 11 applies the exciting force of second direction or the exciting force of third direction；The present embodiment experimental rig is also wrapped
Include：Vibrator 32, vibrator 32 can apply the exciting force of first direction to rotary drum 11.
In the present embodiment, first annular field mechanisms 30 are identical with the structure of the second toroidal magnetic field mechanism 31,
Each toroidal magnetic field mechanism includes：The inner ring 30b and outer ring 30a (referring to Figure 10) being mutually arranged, inner ring
30b and outer ring 30a inside has gap with iron core, and between inner ring 30b and outer ring 30a；Inner ring 30b
Be fixedly arranged in the rotating shaft of rotary drum 11, the rotating shaft of inner ring 30b and rotary drum 11 can synchronous axial system, circumferentially,
Multigroup first coil (not shown) is interval with inner ring 30b, every group of coil is set around on inner ring 30b；
Outer ring 30a is permanent magnet, or, outer ring 30a is provided with multigroup second coil (not shown), second
Coil is set around on the 30a of outer ring, and vibrator 32 offsets with outer ring 30a, and outer ring 30a is maintained static.
In the present embodiment, after first coil or the second coil electricity, inner ring 30b and outer ring 30a it
Between produce around rotary drum 11 rotating shaft radial electromagnetic force；With reference to Figure 10, wherein, on inner ring 30b
The electromagnetic force of N polarity is produced after one coil electricity, S poles are produced after the second coil electricity on the 30a of outer ring
The electromagnetic force of property；When outer ring 30a is permanent magnet, when there is no the second coil, it is also possible to produce S polarity
Electromagnetic force；So, the electromagnetic force opposite polarity produced by outer ring 30a and inner ring 30b, inner ring 30b and
Outer ring 30a can attract each other, because outer ring 30a is maintained static, then inner ring 30b will be moved, and interior
Circle 30b is fixedly connected with the rotating shaft of rotary drum 11, so that inner ring 30b motions drive turning for rotary drum 11
Axle is moved, and exciting force is received equivalent to rotary drum 11,
In the present embodiment, also including multiple electromagnetic controllers (not shown), each electromagnetic controller with it is every
Group first coil connection, i.e., each group first coil is connected with an electromagnetic controller；Electromagnetic controller
Change the radial electromagnetic force size produced by the size of current control that first coil is input into by changing；This reality
In applying example, first coil can be spacer ring around being arranged on inner ring 30b, after every group of first coil is powered,
The electromagnetic force of different directions can be produced, the electromagnetic force of second direction and third direction is also included among these；
The electromagnetic controller by being connected with the first coil being arranged on second direction or third direction changes respectively
The size of current of first coil is input into, the radial electromagnetic force produced by control second direction and third direction is big
It is small.Change the exciting force and the exciting force of third direction of the second direction applied to rotary drum 11.
Second vibrator 19, the 3rd exciting in the effect of annular field mechanisms and embodiment one in the present embodiment
The effect of device 14a is identical；But compared to embodiment one, structure is simplified, it is only necessary in the axle of rotary drum 11
To two ends be respectively arranged a toroidal magnetic field mechanism be capable of achieving to rotary drum apply second direction exciting force and
The exciting force of third direction；And, it is necessary to be respectively arranged one at the axial two ends of rotary drum 11 in embodiment one
Second vibrator 19, the 3rd vibrator 14a, structure are complex；Additionally, in the present embodiment, annular
Field mechanisms can not only realize the excitation of the exciting force and third direction for applying second direction to rotary drum
Power, can also apply the exciting force of radially either direction, can simulate tire and more vibrate operating mode.
With reference to Fig. 8 and Fig. 9, experimental rig also includes drive mechanism 17 in the present embodiment, turns for driving
Drum 11 is rotated；Rotary drum 11 is driven to rotate by drive mechanism 17, drive mechanism 17 can be surveyed for vortex
Work(machine or motor, drive mechanism is eddy current dynamometer in the present embodiment, and rotary drum is driven by eddy current dynamometer
11 rotations.
In the present embodiment, in the first direction, eddy current dynamometer offsets with the outer ring of axial one end of rotary drum 11,
Vibrator 32 offsets with the outer ring of the axial other end of rotary drum 11.
With reference to Fig. 7-Fig. 9 and Figure 11, the present embodiment also includes：First platform, rotary drum 11, drive mechanism
17th, driver 32 is located on the first platform；First platform includes：Base plate 10, vertically, base plate
There is gap, the process for preventing rotary drum 11 from rotating rubs with base plate 10 between 10 and rotary drum 11；And be located at
The first support member 33, the second support member 34, the 3rd support member 35 and the 4th support member 36 on base plate 10；
In the present embodiment, vibrator 32 is located on the first support member 33, the axial direction two of the rotating shaft of rotary drum 11
The outer ring 30a at end is respectively arranged on the second support member 34 and the 3rd support member 35, and drive mechanism 17 is located at
On 4th support member 36；First support member 33, the second support member 34, the 3rd support member 35 and the 4th
Support member 36 is played a supporting role；In the present embodiment, the first support member 33, the second support member the 34, the 3rd
The support member 36 of support member 35 and the 4th is plate-like, in other embodiments, the first support member 33,
Two support members 34, the 3rd support member 35 and the 4th support member 36 can also be in the form of a column or other shapes, only
Can play a supporting role.
Also include with reference to Fig. 7-Fig. 9 and Figure 12 the present embodiment experimental rigs：Second platform 20, the second platform
20 is plate-like, and vertically, the second platform 20 and the first platform have setpoint distance, i.e. the second platform
20 and base plate 10 have setpoint distance；The 5th support member 37, the present embodiment are provided with the second platform 20
In, the 5th support member 37 is also plate-like, but is not limited to tabular, any as long as can play a supporting role
Shape；5th support member 37 is provided with wheel perpendicular to the second platform 20 on the 5th support member 37
Tire 22；Perforate is provided with the second platform 20, perforate exposes 11 rotary drums；In tapping, rotary drum 11 with
Tire 22 is contacted, and the rotation of rotary drum 11 can be such that tire 22 is travelled on the outer peripheral face of rotary drum 11.
With reference to Figure 12, vertically, the 5th support member 37 is provided with groove, and sliding block is provided with groove
25, sliding block 25 can vertically be slided in groove；25 are installed with perpendicular to sliding block 25 on sliding block
The second axle 23, tire 22 is installed on the second axle 23；In the present embodiment, in the 5th support member 37
Top is provided with the adjusting knob 24 slided for adjusting slider 25, and regulation adjusting knob 24 can make sliding block
25 vertically slide, such that it is able to adjust the size of the tire on the second axle 23, it is possible to achieve
The vibration test of various sizes of tire.In the present embodiment, it is possible to use leading screw carrys out control slide block 25 recessed
Slided in groove.
The tire vibration experimental rig of the embodiment of the present invention is the vibration of tire in order to test under different operating modes
Characteristic, accordingly, it would be desirable to measure the test data under different operating modes；Data for needed for collection experiment, this
Inventive embodiments are arranged wheel rim (not shown) on the second axle 23, and tire 22, wheel rim are installed on wheel rim
Be determination of six components of foree instrument, for detect tire 22 travel during in a first direction, second direction and the 3rd
Power and torque suffered by direction.
Meanwhile, for test tire 22 is in which operating mode downward driving, in the axial direction of the rotating shaft of rotary drum 11
One end is provided with the first acceleration transducer (not shown), the axial direction one of the rotating shaft for detecting rotary drum 11
The acceleration that end produces when power is activated；Second is provided with the axial other end of the rotating shaft of rotary drum 11 to add
Velocity sensor (not shown), for detecting that the axial other end of rotating shaft of the rotary drum 11 is being subject to
The acceleration produced during exciting force；The 3rd acceleration transducer (not shown) is provided with the second axle 23,
The acceleration produced when power is activated for detecting tire 22；Vibrator 32 has exciting rod,
Excitation force snesor is provided with the exciting rod of vibrator 32, for detecting that it is sharp that vibrator 32 is applied
Encourage power；The rotating shaft of rotary drum 11 is provided with speed probe and torque sensor, for detecting drive mechanism 17
The rotating speed of output and torque.Determination of six components of foree instrument, the first acceleration transducer, second in the present embodiment
Acceleration transducer, the 3rd acceleration transducer and excitation force snesor, speed probe and torque sensing
Device is each configured to be connected with data acquisition unit, and connected mode can be communication connection, or electricity
Connection, data acquisition unit gathers determination of six components of foree instrument, the first acceleration transducer, the second acceleration respectively
The signal that degree sensor, the 3rd acceleration transducer and excitation force snesor send, data acquisition unit will
The corresponding signal for being gathered is sent to data processing unit, and experimental data is processed by data processing unit；
Draw the vibration characteristics of tire under different operating modes.Can be by the vibration of tire under the different operating modes measured by experiment
Performance data is contrasted with tire FTire, SWIFT simulation model, recognizes tire model parameter, and verify wheel
Tire simulation model vibration characteristics.
The vibration of tire under following operating mode can be simulated using the tire vibration experimental rig of the embodiment of the present invention
Characteristic：
1. vibrator 32 applies lateral excitation power, the meeting lateral sliding of rotary drum 11, then tire to inner ring
Lateral sliding is produced between 22 and rotary drum 11, the lateral sliding operating mode of tire 22 is simulated；
2. the inner ring of the toroidal magnetic field mechanism 31 of first annular field mechanisms 30 and second is in radial electromagnetic force side
To, it is of different sizes when, rotary drum 11 deflects, i.e., tire 22 has certain with respect to the outer peripheral face of rotary drum 11
Drift angle, can simulate the operating modes such as camber angle, toe-in angle；
3. in rotary drum 11 drives the rotation process of tire 22, rotary drum 11 is accelerated by drive mechanism 17
Drive, while the synchronous radial direction exciting force (being now second direction) for reducing the both sides of rotary drum 11, can simulate
Dynamic characteristic when front-wheel axle load reduces when forerunner's vehicle suddenly accelerates；
4. in rotary drum 11 drives the rotation process of tire 22, rotary drum 11 is accelerated by drive mechanism 17
Drive, while the radial direction exciting force (being now second direction) of synchronous increase rotary drum 11 both sides, can mould
Intend dynamic characteristic when trailing wheel axle load increases when rear-guard vehicle suddenly accelerates；
5. in rotary drum 11 drives the rotation process of tire 22, rotary drum 11 is subtracted by drive mechanism 17
Speed drives, while the synchronous radial direction exciting force (being now second direction) for reducing the both sides of rotary drum 11, can mould
Intend dynamic characteristic when trailing wheel axle load reduces during vehicle brake hard；
6. in rotary drum 11 drives the rotation process of tire 22, rotary drum 11 is subtracted by drive mechanism 17
Hasten to drive, while the radial direction exciting force (being now second direction) of synchronous increase rotary drum 11 both sides, can
Dynamic characteristic when front-wheel axle load increases during simulation vehicle brake hard.
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art,
Without departing from the spirit and scope of the present invention, can make various changes or modifications, therefore guarantor of the invention
Shield scope should be defined by claim limited range.
Claims (27)
1. a kind of tire vibration experimental rig, it is characterised in that including：
The rotary drum that can be rotated, the rotary drum can drive the tire to be travelled on the outer peripheral face of rotary drum；
The rotary drum can receive the exciting force from first direction, the exciting force of second direction and third party
To exciting force；
The first direction is the axial direction of the rotary drum, and the second direction is vertical direction；
The first direction, second direction, third direction are mutually perpendicular to.
2. tire vibration experimental rig as claimed in claim 1, it is characterised in that also including vibrator, institute
Stating vibrator can apply the exciting force of first direction, the exciting force of second direction and the to the rotary drum
The exciting force in three directions；
The vibrator includes：
The first vibrator of the exciting force of first direction can be applied to the rotary drum；
The second vibrator of the exciting force of second direction can be applied to the rotary drum；
The 3rd vibrator of the exciting force of third direction can be applied to the rotary drum.
3. tire vibration experimental rig as claimed in claim 2, it is characterised in that also include：Drive mechanism,
For driving the rotary drum to rotate.
4. tire vibration experimental rig as claimed in claim 3, it is characterised in that also including first support and
Second support, rotating shaft axial direction one end of the rotary drum is connected with the first support, in the axial other end
It is connected with the second support.
5. tire vibration experimental rig as claimed in claim 4, it is characterised in that first vibrator,
Second vibrator, the 3rd vibrator offset with the first support, second support respectively.
6. tire vibration experimental rig as claimed in claim 4, it is characterised in that also include：First platform,
The rotary drum, drive mechanism, driver are located on first platform.
7. tire vibration experimental rig as claimed in claim 6, it is characterised in that first platform includes：
Base plate；
The first support member, the second support member on the base plate, the 3rd support member；
On first support member, second vibrator is located at the base plate to first vibrator
On, on second support member, the drive mechanism is located at described 3rd to the 3rd vibrator
In support member.
8. tire vibration experimental rig as claimed in claim 6, it is characterised in that also include：
Second platform, vertically, second platform and first platform have setpoint distance；
Second platform is provided with the 4th support member, and the tire is provided with the 4th support member；
Second platform is provided with perforate, and the perforate exposes the rotary drum；
In the tapping, the rotary drum and the tire interface simultaneously make the tire in the outer of the rotary drum
Travelled on side face.
9. tire vibration experimental rig as claimed in claim 8, it is characterised in that
4th support member is provided with groove, and sliding block is provided with the groove, and the sliding block can be in institute
State and vertically slided in groove；
The second axle is installed with the sliding block, the tire is installed on second axle.
10. tire vibration experimental rig as claimed in claim 9, it is characterised in that be arranged on second axle
Wheel rim, installs the tire on the wheel rim, determination of six components of foree is provided with the inner peripheral surface of the wheel rim
Instrument, for detecting during the tire running in the first direction, second direction and third direction
Suffered power and torque.
11. tire vibration experimental rigs as claimed in claim 9, it is characterised in that set in the first support
There is the first acceleration transducer, for detecting the acceleration that the first support is produced when power is activated
Degree；
The second support is provided with the second acceleration transducer, for detecting that the second support is being subject to
The acceleration produced during exciting force；
Second axle is provided with the 3rd acceleration transducer, for detecting that the tire is being activated power
When produced acceleration.
12. tire vibration experimental rigs as claimed in claim 2, it is characterised in that the vibrator has sharp
Shaken bar, and excitation force snesor is provided with the exciting rod, for detecting what the vibrator was applied
Exciting force.
13. tire vibration experimental rigs as claimed in claim 3, it is characterised in that in the rotating shaft of the rotary drum
Speed probe and torque sensor are provided with, rotating speed and torque for detecting the drive mechanism output.
14. tire vibration experimental rigs as claimed in claim 3, it is characterised in that the drive mechanism is whirlpool
Stream dynamometer machine or motor.
15. tire vibration experimental rigs as claimed in claim 1, it is characterised in that the external diameter of the rotary drum is
5-10 times of the tire outside diameter.
16. tire vibration experimental rigs as claimed in claim 1, it is characterised in that also including institute can be applied
State the toroidal magnetic field mechanism of the exciting force of second direction or the exciting force of the third direction, the annular
Field mechanisms include the first annular field mechanisms of axial one end of the rotating shaft located at the rotary drum, and
Located at the second toroidal magnetic field mechanism of the axial other end of the rotating shaft of the rotary drum；
The toroidal magnetic field mechanism is by producing the radial electromagnetic force of the rotating shaft around the rotary drum to described turn
Drum applies the exciting force of the second direction or the exciting force of the third direction；
Also include：Vibrator, the vibrator can apply the excitation of the first direction to the rotary drum
Power.
17. tire vibration experimental rigs as claimed in claim 16, it is characterised in that the toroidal magnetic field mechanism
Including：
The inner ring being mutually arranged and outer ring, have gap between the inner ring and the outer ring；
The inner ring is fixedly arranged in the rotating shaft of the rotary drum, circumferentially, is interval with the inner ring multigroup
First coil；
The outer ring is permanent magnet, or, the outer ring is provided with multigroup second coil, the vibrator
Offseted with the outer ring；
After the first coil or second coil electricity, produced between the inner ring and the outer ring
Around the radial electromagnetic force of the rotating shaft of the rotary drum.
18. tire vibration experimental rigs as claimed in claim 17, it is characterised in that also including multiple electromagnetism controls
Device processed, each electromagnetic controller is connected with first coil described in every group；Each Electromagnetic Control
Device controls produced radial electromagnetic force size by changing the size of current of the input first coil.
19. tire vibration experimental rigs as claimed in claim 17, it is characterised in that also include：Drive mechanism,
For driving the rotary drum to rotate.
20. tire vibration experimental rigs as claimed in claim 19, it is characterised in that also include：First platform,
The rotary drum, drive mechanism, driver are located on first platform.
21. tire vibration experimental rigs as claimed in claim 20, it is characterised in that first platform includes：
Base plate；
The first support member, the second support member, the 3rd support member and the 4th support member on the base plate；
The vibrator is located on first support member, the outer ring at the axial two ends of the rotating shaft of the rotary drum
It is respectively arranged on second support member and the 3rd support member, the drive mechanism is located at the described 4th
On support member.
22. tire vibration experimental rigs as claimed in claim 20, it is characterised in that also include：
Second platform, vertically, second platform and first platform have setpoint distance；
Second platform is provided with the 5th support member, and the tire is provided with the 5th support member；
Second platform is provided with perforate, and the perforate exposes the rotary drum；
In the tapping, the rotary drum and the tire interface simultaneously make the tire in the outer of the rotary drum
Travelled on side face.
23. tire vibration experimental rigs as claimed in claim 22, it is characterised in that
5th support member is provided with groove, and sliding block is provided with the groove, and the sliding block can be in institute
State and vertically slided in groove；
The second axle is installed with the sliding block, the tire is installed on second axle.
24. tire vibration experimental rigs as claimed in claim 23, it is characterised in that be arranged on second axle
Wheel rim, installs the tire on the wheel rim, determination of six components of foree is provided with the inner peripheral surface of the wheel rim
Instrument, for detecting during the tire running in the first direction, second direction and third direction
Suffered power and torque.
25. tire vibration experimental rigs as claimed in claim 23, it is characterised in that the rotating shaft of the rotary drum
Axial one end is provided with the first acceleration transducer, for detecting that axial one end of rotating shaft of the rotary drum exists
It is activated the acceleration produced during power；
The axial other end of the rotating shaft of the rotary drum is provided with the second acceleration transducer, for detecting described turning
The acceleration that the axial other end of bulging rotating shaft is produced when power is activated；
Second axle is provided with the 3rd acceleration transducer, for detecting that the tire is being activated power
When produced acceleration.
26. tire vibration experimental rigs as claimed in claim 16, it is characterised in that the vibrator has sharp
Shaken bar, and excitation force snesor is provided with the exciting rod, for detecting what the vibrator was applied
Exciting force.
27. tire vibration experimental rigs as claimed in claim 19, it is characterised in that in the rotating shaft of the rotary drum
Speed probe and torque sensor are provided with, rotating speed and torque for detecting the drive mechanism output.
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| CN109900352A (en) * | 2017-12-07 | 2019-06-18 | 东洋橡胶工业株式会社 | Tire noise experimental rig and method |
| CN109916640A (en) * | 2019-03-29 | 2019-06-21 | 重庆长安汽车股份有限公司 | A kind of automobile tire operational modal test device |
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| CN113607434A (en) * | 2021-08-04 | 2021-11-05 | 厦门威迪思汽车设计服务有限公司 | Tire dynamic and modal testing device |
| CN114056336A (en) * | 2020-08-07 | 2022-02-18 | 上海汽车集团股份有限公司 | Method for controlling axial vibrations of a drive train and chassis drive train of a motor vehicle |
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